Sectionally supported thin refractory wall, bracket, and wall tile therefor



April 13, 1954 1.. H. HOSBEIN SECTIONALLY SUPP ORTED THIN REFRACTORY WALL, BRACKET, AND WALL TILE THEREFOR Filed March 1, 1950 3 Sheets-Sheet l w frzzxerzibr 02225 '15? 556272 April 13, 1954 H. HOSBEIN 2,674,871

SECTIONALLY SUPPORTED THIN REFRACTORY WALL, BRACKET, AND WALL TILE THEREFOR Filed March 1, 1950 5 Sheets-$heet 2 frzzkfzfii [ozzz's 195558272 @WMW April 13, 1954 L. H. HOSBEIN 2,674,871

SECTIONALLY SUPPORTED THIN REFRACTORY WALL, BRACKET, AND WALL TILE THEREFOR Filed March 1, 1950 3 Sheets-Sheet 3 [Hi/@IZE". Zauz's 15. 1705549172.

Patented Apr. 13, 1954 SECTF ONALLY SUPP TORY WALL, BRA

THEREFOR Louis H. Hosbein,

ORTED THIN REFRAC- CKET, AND WALL TILE Glencoe, 111., assignor to M. H.

Detrick Company, Chicago, 111., a corporation of Delaware Application March 1, 1950, Serial No. 147,083

13 Claims. 1

My invention relates to refractory walls, and more particularly to a thin refractory wall that is sectionally supported.

It is the general purpose of my invention to provide a construction for a refractory wall whereby a thin wall can be built that is suitable for use where temperatures up to 2200 F. are encountered, that is sectionally supported, and in which the metallic structure forming part of the supporting means is so located in the wall that this metallic structure will not be subjected to the high temperature existing at the exposed face of the Wall and in which the metallic parts will be at a much lower temperature than in any previously known construction of thin refractory walls.

It is a further purpose of my invention to provide a wall that is of such a character that the same can be insulated to any desired thickness without departing from the general principle of my invention. My wall structure embodies refractory bracket members that can be varied in length from the inner exposed end thereof to the outer end thereof to provide the desired thickness of heat insulation without departing from the general principle of construction thereof and without impairing the strength and the usefulness thereof in any manner.

More specifically it is a purpose of my invention to provide a refractory wall that comprises wall forming refractory tiles or blocks and supporting refractory blocks or brackets that extend to the inner or exposed face of the wall and form a part thereof, said refractory bracket or supporting members being arranged in spaced relationship both vertically and horizontally in said wall, thus greatly cutting down the heat loss that ordinarily occurs in previously known thin refractory walls, approximately 87 7 of the area of the wall being provided with an insulating covering of full thickness and all of the metallic parts of the supporting structure lying outwardly of the outer face of the wall forming tiles or refractory blocks a substantial distance so as to be largely shielded from the heat to which the inner face of the wall is exposed by the heat insulating material, and the only appreciable heat that reaches any of the metallic structure being through the refractory bracket members, with which metallic bracket members are engaged to hold and support said refractory bracket members in wall supporting position.

It is a further specific purpose of my invention to provide a refractory wall construction in which .only two shapes of refrac o y membersare utilized, said shapes comprising thin wall forming blocks or tiles and thicker refractory bracket members or wall tile supporting members. My invention further has for its purpose such an arrangement and disposition of the wall forming tiles or blocks and the bracket tiles or blocks that the bracket tiles or blocks are provided only in alternating horizontal rows or courses of said wall forming tiles or blocks, the refractory bracket members or blocks thus supporting not only the wall forming blocks or tiles in the same horizontal row, but those in the horizontal row above the same.

It is a further purpose of my invention to provide a metallic mounting means for the refractory members that is simple in construction and easily erected and in which no bolts and nuts are required for securing the various parts in position, except for securing the horizontal metallic frame members to the vertical metallic column.

Other objects and advantages of my invention will appear as the description of the drawings proceeds. I desire to have it understood, however, that I do not intend to limit myself to the particular details shown or described, except as defined in the claims.

In the drawings:

Fig. l is a fragmentary face view of a refractory wall made in accordance with my invention, as viewed from the inner or exposed face thereof.

Fig. 2 is a vertical sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary section taken on the line 3-3 of Fig. 1.

Fig. 4 is a similar section taken on the line 4-4 of Fig. 1.

Fig. 5 is a fragmentary perspective view, showing a portion of my improved thin refractory wall.

Fig. 6 is a view in side elevation of one of the metallic bracket members used in my refractory wall construction.

Fig. '7 is a vertical sectional view of another of said bracket members.

Fig, 8 is a perspective view of another of the metallic bracket members used in my wall construction.

Fig. 9 is a perspective view of one of the bracket tile members, as viewed from one side thereof.

Fig. 10 is a fragmentary perspective view of one of the wall forming tiles, as viewed from one end thereof.

Fig. 11 is a perspective view of one of the wall forming tiles as it would appear in the next row below that in which the tile shown in Fig. 10 would be located.

Fig. 12 is a perspective view of the bracket tile, as viewed from the other side thereof, and

Fig. 13 is a fragmentary perspective view of a wall tile, shown in Fig. 10, as viewed from the other end thereof.

Referring in to the drawings, my improved wall structure is mounted on a suitable structural framework comprising vertical frame members or columns 28 and horizontal frame members 21, which are shown as bein channel members. The channel members 2! are secured to the columns 28 by means of boltin in the usual manner, the bolts not being shown in the drawings. The flanges 22 of the channel members 2% are provided with vertically aligning openings therein, through which pins provided on the various bracket members extend, as will be described below.

Said bracket members comprise a bottom bracket 25, shot-en in Fig. 7, which has an upper horizontally extending portion 2 5 and a lower horizontally extending portion 25 connected by means of a vertical portion 2%, the portion 25 terminating in an upstanding hook-like flange 2?, which has an inclined outer face 28, a substantially flat top face 29 and a vertical wall 35 extending from the flat top wall 35 of the lower portion of the bracket. The bracket 23 has a headed fastening element 3'2 cast in the portion 2% thereof, which has a screw-threaded portion 33 with which a nut 3 engages, the nu 3d serving to hold the bracket member 23 in the position shown in Fig. 2, the threaded shank portion 33 extending through an opening in the lower flange 22 of the lowermost horizontal fram member 2i and the nut t l being applied to clamp the bracket on said flange 22.

The metallic brackets 35 are mounted between the flanges 22 of a channel member and are shown more in detail in Fig. 6. Said brackets comprise a vertically extendin body portion, which has an ear at the upper end thereof and an ear :5? at the lower end thereof and which is provided with a laterally extending flange 38 thereon that extends in the opposite direction to the ears 35S and El and-which isprovided with a depending hook formation 39 thereon that is similar to the hook formation El, previously do scribed, having an inclined outer wall at and an inclined inner wall si extending to, the flat bottom face of the flange 38. The top face of the flange 38 is flat, as will be obvious from Figs- 5 and 6. The cars 36 and 3,? have ali ning openings t2 and 33 therein and the brackets (=5 each have a depending lip til thereon that extends downwardly from the edge of the bracket below the lower ear 3?. This lip it, it will be noted. upon reference to 2, extends downwardly over the inner edge of the flange 22' to prevent rotation of the bracket 35' about the axis of the openings 52 and The bracket 35' is placed in pos tion shown in Fig. 2 with the upper end no ion of the threaded shank 33' of the headed member 32 extending through the opening in the low ear 3?. The brackets 23am provided only at the lower end portion of the structure below the lowermost horizontal frame member 2!, but the brackets 35 are provided between the flanges of all ofthe horizontal frame members 2 i, as willbe obvious from Figs; 1 and'2:

The metallic bracket bars it constitute theprincipal metallic supportin means for mounting the wall structure on the framework. Said. bar-like members are substantially T-shaped in cross section, having a medial flange 35 extending longitudinally thereof between the various horizontal flanges provided thereon, that will be described below. Said horizontal flanges comprise a plurality of substantially rectangular flanges ll, which have flat top faces .3 and which have side edges that are parallel to each other and perpendicular to the forward end edges thereof. The flanges or ears ill alternate with flanges or cars 49- that are of a hook-like character, the flanges or ears it tapering toward their hook ends 58, the hook ends of said ears or flanges 49 being directed downwardly and having inclined outer faces 51 and inclined inner faces 52, thus being shaped very similarly to the hook flange formations 39 on the brackets 35. lfhe opposite ends of the bracket bars 45 are also provided with flanges or cars comprisin a lower ear or flange b3 and an upper flange or ear ll, which is shaped very similarly to the flanges or cars ll, having a flat top face 48.

The bottommost ear or flange 53 has a flat bottom face 5 and is provided with a depending marginal lip 55. The lip 55 is adapted to fit around the inner edge of the top flange 22 of a horizontal frame member 2! with the flat bottom face 5 in engagement with the top face of said flange 22. A pin 58 projects downwardly from the bracket bar 4-5 from the bottom flat face 5d of the ear 53, and a pin 5?, somewhat longer than the pin 53, projects upwardly from the flat top face d8 of the upper ear or flang fill. In assembling the bracket bar 45 with the frame members 2% the long pin lil, integral therewith, is projected through an opening 58 in a lower flange 22 of a frame member 2i and the bracket bar is pushed upwardly until the flat face 68 of the ear ll reaches the lower face of the flange 22. The pin 55 can then be passed through the aligning opening se in the upper flange of the next lower horizontal frame member 2! and the bracket bar 35 permitted to move to the position shown in Fig. 2. When this happens the pin 56 enters the opening 42 in the upper car 36 of the bracket the brackets 35 and 55 being thus held in fixed position on the framework and against rotation about the axis of the pins 56 and 5'1 because of the lips 55 and a l.

It will be noted that the forwardly extending rib or flange 46 extends between all of the flanges or cars provided on the bracket bar it, and that there is a forward projection SS above each of the flanges 4?, in spaced relation thereto, on the rib or flange d6, that has a flat vertical face 51 and inclined top and bottom walls 62 and 53. The purpose of the projections 68 will become obvious as the description proceeds. It is to be understood that the bracket members 35 and 55 alternate, with the bracket members 35 always between the flanges of a channel member 2i and the bracket members to always between the flanges of adjacent channel members 2!.

The refractory bracket members or blocks t l are mounted on themetallic brackets. All said refractory bracket members are alike, each thereof having flat inner or exposed end faces 65 and flat side faces 65 and 6?. The rear or outer face 68 of said bracekt member is also flat and of less vertical extent than the inner or exposed face 55. A downwardly opening groove 59 extending in thedirection of the length of thewall' or crosswise of the bracket member 6a is provided on the lower side of the refractory bracket member and a similar upwardly opening groove 19 is provided on the upper side thereof, said grooves defining longitudinal ribs H and 12 on said bracket member, the rib 1I projecting downwardly and the rib 12 upwardly. The groove 69 is provided with a flat bottom wall 13, and inclined side walls 14 and 15, while the groove 19 is provided with a flat bottom wall 16 and inclined side walls 11 and 18. The groove 99 thus flares downwardly and the groove 19 upwardly. A flat bottom face 19 is provided on the bracket member between its inner and outer ends, and a narrower fiat top face 89 is provided on said block between its inner and outer faces. The ribs 1I and 12 have flat bottom and top faces, respectively, which are offset upwardly and downwardly respectively, relative to the flat faces 19 and 89.

The blocks 64 are mounted on the metallic bracket bars 45 so that each of said refractory bracket blocks, except the lowermost ones, has the flat bottom face of a rib 1I mounted on the flat top wall 48 of a flange or ear '41 or 41', said flanges or ears thus serving as shelf-like portions on the brackets 45 for supporting the refractory blocks 64. The depending hook ends 59 on the hook flanges 49 of the bracket members 45 are seated in the grooves 19 of the blocks 94, that rest on the shelf-like flanges 41, While the depending hook flanges 39 on the brackets 35 seat in the grooves 10 of the blocks 64 that are mounted on the shelf-like flanges 41' on the bracket members 45. The flat rear faces 68 of the refractory bracket blocks engage with the flat faces of the projections 59 on said brackets 45, thus holding the refractory bracket members 64 from tilting on the shelf-like members 41. The lowermost refractory bracket members 64 have the upwardly extending hook formations 21 on the brackets 23 mounted in the grooves 69 thereof and have the depending hook flanges 39 on the brackets 35 mounted in the grooves 19 thereof. Vertical rows of vertically spaced bracket members 64 are thus provided on the metallic framework.

On their lower sides said refractory bracket members 84 have ribs 8I that project downwardly below the flat bottom face 19 extending longitudinally of the wall or transversely of said refractory bracket members, an inclined wall 82 connecting the rib 8| with the flat face 19. A groove 83 extending longitudinally of the wall and thus transversely of the bracket member 54 lies between the flat face 89 and a rib 84 on the upper side of said bracket member, the rib 84 having a flat top face in the same plane as the flat face 89 and being shorter than the flat face 89. Said groove 83 is provided with inclined side walls 85 and 86, the wardly.

The side face 99 is provided with a flat face inwardly offset therefrom forming the bottom of a groove or recess having a vertically extending portion 81 and a transversely extending portion 88. (See Figs. 5 and 9.) The flat bottom face of said groove aligns with the inwardly offset flat face 89 forming a part of said recess opening into the forward wall 65. The portions 81 and 88 of the groove have inclined side walls 99 and 9|, the portions 81 and 88 of the groove thus flaring outwardly. A similar inclined wall 93 connects the flat face 69 with the inwardly offset flat face 89. The vertical and horizontal portions 81 and 88 of said groove define a projection 94 groove 83 thus flaring up on the one side face of the hanger bracket that has its outer face in alignment with the flat face 65, and there is a forward projection 92 on the wall 66 aligning with the vertical portion 81 of the recess or groove in said face.

The opposite flat face 61 of the hanger bracket is recessed at and 96. The recesses 95 and 99 have fiat bottom faces, the flat face of the recess 95 extending to the bottom face of the refractory hanger member, and the flat face of the recess 96 extending to the forward flat face 65 of the hanger bracket and to the flat top face 84. The recesses 95 have inclined walls, such as the wall 98, that extend to the flat face 61 from the flat bottom walls of said recesses, and the recesses 99 have similar inclined walls 99 and I99. The recesses thus define a transverse portion I92 of the flat side wall 61 connecting the wall portion I93 lying on the opposite side of the recess 95 from the main portion of the fiat face 91 with said main portion of the flat face 61.

Thus a refractory bracket member is provided, that has a recess in one side face thereof that is made up of an upper portion 81 and a lower portion 89 out of vertical alignment and connected by means of the transverse groove 88, and an opposite face that has a pair of recesses 95 and 96 provided therein that are separated by means of a transverse wall portion I92 and which recesses are out of vertical alignment so that the one recess 95 lies spaced from the forward or inner face 65 of the bracket 94 and the other, the recess 95, opens into said inner face of the bracket '84. The recesses in the opposite faces of the bracket are complementary to each other, in that the portions 81, 88 and 89 that are recessed on the one face 96 of the bracket are in alignment with portions i9 I, I92 and I93 on the opposite face 91 thereof that are in the plane of the flat face 91, while the recesses 95 and 99 in the face 91 lie opposite portions 92 and 94 that are in alignment with said flat face 66.

The major portion of the thin refractory wall is made up of wall formin blocks I94, which have parallel flat side faces I95 and I99, the side face I96 being narrower or of less height than the side face I 95, thus providing a pair of flat faces I 91' and I98 on one of the longitudinal edges of said wall forming blocks that are offset from each other so as to provide a longitudinal inclined shoulder I99 between a pair of flat faces I I 9 and I I I on the other longitudinal wall thereof defining an inclined shoulder II2 between the same. The one end Wall of the wall forming blocks I94 is provided with a pair of projections H3 and II 4 that have flat faces that lie in the same plane and which project endwise from the flat wall II 5, said projections being rectangular and the projection Il4 being some-- what longer or taller than the projection H3. The flat wall I I 5 has a transverse portion I I8 separating th projections H4 and H3 and has portions H1 and H8, that each other, extendin from the transverse portion H6. The projections II 3 and H4 have inclined walls H9, I29, I2I and I22 connecting the flat faces of said recesses with the flat wall I i5. (See Figs. 10 and 11.)

The opposite end of the wall forming blocks I94 has a flat end wall I23 that has a transversely extending portion I24 connecting the portions I25 and I 29, that are out of alignment with each other, and has recessed portions I21 and I28 that are provided with flat bottom walls and are connected with the flat end wall I 23 by means of insaid faces I91 and I98, and.

are out of alignment with such as the inclined wall portions I29 and I39. The fiat bottom wall of the recess 12! corresponds to the fiat top wall of the projection H4 and the fiat bottom wall of the recess 128 corresponds to the hat top wall of the projection l 13, while the wall 123 corresponds in shape to the wall I I5. (See Fig. 13.)

Thus if the end of the wall forming member having the projections i it and l H thereon is moved toward the end portion of an adjacent wall forming member We in the same horizontal row with the upwardly offset portions 161 of said wall forming members in alignment, the projection H4 will seat in the recess i2? and the projection H3 will seat in the recess 12%, the shoulders W9 between the portions it? and 92 forming a continuous shoulder along the entire horizontal row of said wall forming members and the shoulders H2 of said wall formin members Hi forming a clined wall portions,

similar continuous shoulder along said entire row,

Similarly, if the wall forming members its are reversed top for bottom from the position shown in Fig. to that shown in Fig. 11, the recesses I28 and I2! will again receive the projections 1 i3 and H4 and the shoulders ass and 1 l2 will again be continuous longitudinally of the horizontal row of such wall forming members We. Furthermore, if each horizontal row or course of the wall forming members we are reversed top for bottom, the shoulders (59 of one horizontal row or course and the shoulders of the next higher horizontal row or course will engage with each other and the shoulders H2 of one horizontal course or row will engage with the shoulders H2 on the next lower, horizontal row or course.

Furthermore the recess 98 in the refractory bracket 84 has a flat bottom face of the same size as the flat top face of the projection l as, whereas the recess 95 has a flat bottom face of the same size as the fiat top face of the projection us. Accordingly if the block [be shown in 10 is brought into engagement with the side of the refractory bracket member be shown in Fig. 9 that is toward said block Hit, the projection H4 will seat in the recess 95 and the projection H3 will seat in the recess 95, while the recessed or set back wall portion H5 will receive the wall portions 182, I93 and lei in the portions H6, H8 and Hi thereof. Thus with the refractory bracket member mounted on the metallic brackets provided therefor, the refractory bracket member will support the adjacent refractory wall forming block 184 and be interlocked therewith so as to hold it in position against movement in any direction, either crosswise or vertically of the wall, and also prevent any relative tilting of the wall forming block on said refractory bracket member 64.

The other side of the refractory bracket member 64 similarly interlocks with the refractory wall forming member its on the other side thereof, as the projection 94 has a top face of the same size as the bottom wall of the recess 121 and will be received in said recess, while the projecting portion 82 on the wall 66 is of the same size as the recess I23 and will seat therein in a similar manner, while the recess made up of the portions 81 and 89, connected by the transverse portion 88, will receive the wall portions I26 and I25, connected by the transverse portion 124, said transverse portion l24 seating in the transverse portion 88.

In assembling the wall, the wall forming blocks I64 alternate in one horizontal row with the refractory bracket members 64, while in the next higher row there are no bracket members 64,

but only wall forming blocks I04. The rows con taining the refractory bracket members 64 and those having no refractory bracket members therein alternate, as will be obvious from Fig. 1, and the refractory bracket members 64 are arranged in vertical rows. In Fig. 3 a horizontal section is shown through one of the rows that has the refractory bracket members therein, while in Fig. 4 is shown one of the rows that has no refractory bracket members therein. The lowermost horizontal row is made up of bracket members 66 and wall forming members I04 that are arranged alternately and are interlocked as above described. The next higher horizontal row or course in the wall is made up entirely of the members I05 and these are arranged so as to break joints with the members H14 of the next lower horizontal row. The downwardly projecting portions l0! of the next higher row or said refractory blocks, as shown clearly in Fig. 2, seat in the grooves 83 of the refractory bracket members and are back of the shoulders N9 of the refractory blocks Wt of the next lower row, with the shoulders ms of said next higher horizontal row of blocks in engagement with the shoulders (E9 of the lower blocks 104.

Thus all of the refractory blocks Hit of a row containing no refractory brackets 64 are interlocked with the refractory bracket members B l of the next lower row so that the refractory blocks H34 or the next higher row can not shift either inward or outward relative to the bracket member 64 below the same. Also each refractory block Hi l in each row is interlocked at its ends with the part adjacent refractory block of said horizontal row, and the shoulders 109 and H2 of a block I04, in the position shown in Fig. 11, which is that of a row either above or below one containing the refractory bracket members 64, will be in engagement with the shoulders I09 and H2 of the refractory members [94 in the horizontal rows below and above the same. As a result none of the wall forming members 104 can move out of fixed position in the wall after being assembled in the manner shown and described.

A relatively thick layer of heat insulating material is provided back of the outer face of the wall between said wall forming blocks 1M and the metallic supporting structure, being shown in the drawings as made up of blocks of insulation is! and blocks of insulation is! shorter than the blocks 13!. It will be noted that the metallic structure that is engaged with the refractory bracket members 64 comprises only the extremities of the shelf-like portions $1 and the hook-like ends of the members 49 and the end faces 61 of the projections 6t, and that all of these are near the outer extremities of said refractory bracket members and have heat insulating material between the same and the relatively thin walled members HM. As a result very little or the heat is transferred to the metallic bracket members and supporting structure. The insulating layer of blocks [3| and 53E, or other suitable heat insulation, can be made as thick as may be found desirable to keep the temperature of the metallic structure to the desired low temperature, as the length of the portion of the refractory bracket member 54 from the inclined shoulder to the outer wall 68 thereof can be increased as much as may be found desirable to obtain the desired thickness of insulation. However, the grooves 69 and 10 will always be closely adjacent the wall as, as the walls so and 19 will only be made wider toaccom lish this purpose, and not the rib portions TI and 12.

What I claim is:

1. A wall structure of the character described comprising thin flat faced elongated refractory blocks arranged edgewise in said wall to extend lengthwise thereof with the fiat faces thereof lying in the inner and outer faces of said wall and refractory bracket members extending crosswise of said wall, having fiat end faces lying in the inner face of said wall, and projecting from the outer face of said wall, each of said refractory bracket members being located between a pair of vertically spaced blocks and between a pair of horizon-tally spaced blocks, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, said bracket lower portions thereof out with ranged in end to end adjacency, and means on said bracket members and adjacent blocks of the same row and adiacent blocks of an adjacent row to interlock said brackets and blocks.

3. A-wall structure of the character described comprising thin flat faced refractory blocks arranged edgewise in said wall with the flat faces thereof lying in the opposed faces of said wall and refractory bracket members extending crosswise of said wall, having flat end faces lying in the exposed face of said wall, and projecting from the opposite face of said wall, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, said wall comprising horizontal rows containing alternating bracket members and blocks and horizontal rows alternating therewith having said blocks arranged in end to end adjacency throughout the length of said row, and means on said bracket members and adjacent blocks of the same row and adjacent blocks of an adjacent row to interlock said brackets and blocks.

4. A wall structure of the character described comprising thin flat faced refractory blocks arranged edgewise in said wall with the fiat faces thereof lying in the opposed faces of said wall and horizontally spaced vertical rows of vertically spaced refractory bracket members extending crosswise of said wall, having flat end faces lying in the exposed face of said wall, and projecting from the opposite face of said wall, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, said blocks extending in continuous horizontal rows between said vertically spaced bracket members, and being interposed between the vertical rows of said bracket members to alternate with bracket members of adjacent vertical rows, interengaging means on said bracket members and on the ends and bottom edges of said blocks adjacent said bracket members cooperating to support adjacent blocks on said bracket members and hold said blocks from transverse movement on said bracket members, and interengaging means on the ends of adjacent blocks holding the same against relative vertical and transverse movement.

5. A wall structure of the character described comprising refractory blocks and refractory bracket members extending outwardly from said wall, a metal framework having flanged horizontal members having openings in the flanges thereof, metallic brackets having hook portions thereon engaging said refractory brackets and having pins extending through said, openings, metallic brackets having hook portions thereon engaging said refractory brackets and mounted between the flanges of each of said horizontal members, said last mentioned metallic brackets having openings therein receiving said pins to hold said brackets on said horizontal members, and means on said refractory bracket members and said blocks for supporting said blocks on said refractory bracket members.

6. A refractory bracket having a body portion reduced at one end thereof, the opposite end of said bracket having a flat end wall and flat faced recessed side walls, the recessed portions of said side walls comprising recesses at the upper and lower portions of each of said side walls out of vertical alignment with each other having end and side walls extending perpendicularly to each other, the end walls of said recesses being out of transverse alignment, the top and bottom faces of said bracket having marginal ribs at the end thereof having the recessed side walls, and one of said faces having grooves there-- in adjacent both ends thereof.

'7. A refractory bracket having a body portion reduced at one end thereof, the opposite end of said bracket having a flat end wall and fiat faced recessed side walls, the recessed portions of vertical alignment with of said side walls comprising recesses at the upper and lower portions of each of said side walls out each other having end and side walls extending perpendicularly to each other, the end walls of said recesses being out of transverse alignment, the top and bottom faces of said bracket having marginal ribs at the end thereof having the recessed side walls, one of said faces having grooves therein adjacent both ends thereof, and the other of said faces having a groove in only the reduced end of said bracket.

8. A wall structure of the character described comprising thin, flat faced, elongated refractory blocks arranged edgewise in said wall to extend lengthwise thereof with the flat faces thereof lying in the inner and outer faces of said wall and refractory bracket members extending crosswise of said wall, having flat end faces lying in the inner face of said wall and projecting from the outer face of said wall, each of said refractory bracket members being located between a pair of vertically spaced blocks and between a pair of horizontally spaced blocks, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, interengaging means on the sides of said bracket members and the ends of said blocks horizontally adjacent said bracket members cooperating to support horizontally adjacent blocks on said bracket members and hold said blocks from transverse movement on said bracket members, and interengaging means on the ends of adjacent blocks holding the same against relative vertical and transverse movement.

9. A wall structure of the character described comprising thin, flat faced, elongated refractory blocks arranged edgwise in said wall to extend lengthwise thereof with the fiat faces thereof lying in the inner and outer faces of said wall and refractory bracket members extending crosswise of said wall, having flat end faces lying in the inner face of said wall and projecting from the outer face of said wall, each of said refractory bracket members being located between a pair of vertically spaced blocks and between a pair of horizontally spaced blocks, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, said bracket members having recesses in the side faces thereof, the recesses in each of said side faces having the upper and lower portions thereof out of vertical alignment with each other, and the end faces of said blocks having projections thereon that are out of vertical and transverse alignment with each other seating in said recesses of horizontally adjacent bracket members.

10. A wall structure of the character described comprising thin, flat faced, elongated refractory blocks arranged edgewise in said wall to extend lengthwise thereof with the flat faces thereof lying in the inner and outer faces of said wall and vertically and horizontally spaced refractory bracket members extending crosswise of said wall, having flat end faces lying in the inner face of said wall and projecting from the outer face of said wall, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, each of said refractory bracket members having a block located on each side thereof and between said refractory bracket member and the refractory bracket member vertically upwardly spaced therefrom, interengaging means on said bracket member and on the adjacent ends of said blocks on each side thereof and interengaging means on the top of said bracket member and the bottom edge of the block between the same and said vertically upwardly spaced refractory bracket mem-- ber, cooperating to support adjacent blocks on said bracket member and hold said blocks from transverse movement on said bracket member, and interengaging means on the ends of adjacent blocks holding the same against relative vertical and transverse movement.

11. A wall structure of the character described comprising thin, flat faced refractory blocks arranged edgewise in said wall with the fiat faces thereof lying in the inner and outer faces of said wall and refractory bracket members extending crosswise of said wall, having flat end faces lying in the inner face of said wall and projecting from the outer face of said wall, a metal framework, means on said framework engaging said bracket members in spaced relation to said last mentioned face of said wall to hold said bracket members in wall supporting position on said framework, each of said refractory bracket members having a block located on each side thereof and between said refractory bracket member and a refractory bracket member vertically spaced therefrom, interengaging means on the sides of said bracket members and ends of said blocks located at the sides of said bracket members cooperating to support said blocks on said bracket members and hold said blocks from transverse movement on said bracket members, the blocks of alternating rows being endwise adjacent, interengaging means on the ends of adjacent blocks holding the same against relative vertical and transverse movement, and heat insulation between the outer face of said wall and bracket holding means on said framework.

12. A wall structure of the character described, comprising thin, flat faced refractory blocks arranged edgewise in said Wall with the flat faces thereof lying on the inner and outer faces of said wall and refractory bracket members extending crosswise of said wall, having flat end faces lying in the inner face of said wall and projecting from the outer face of said wall, a metal framework having vertically spaced flanged horizontal members having openings in the flanges thereof, metal bars extending vertically between said horizontal members and having pins at opposite ends thereof projecting endwise of said bars, the pin at the upper end of each of said bars being longer than that at the lower end thereof, said pins extending through said openings to mount each of said bars independently and detachably on said :horizontal members, supporting means on said bars for said refractory bracket members, means on said bars for holding said refractory bracket members on said supporting means, and means on said refractory bracket members and said blocks for supporting said blocks on said bracket members.

.3. A refractory wall tile having a pair of flat opposite side faces and having narrow end, top and bottom walls, said top and bottom walls being offset midway between the longitudinal edges thereof to provide a longitudinal shoulder on each of said top and bottom walls lying between a pair of long narrow faces of equal width offset from each other, one of said end walls having a flat face having a pair of vertically elongated flat faced rectangular projections thereon out of vertical alignment with each other and vertically spaced, said flat face having portions out of vertical alignment with each other longitudinally aligned with said projections and a transverse portion connecting said last mentioned portions lying between and separating said projections, said projections providing a pair of oppositely directed transverse shoulders at said transverse portion, and the other of said end walls having a flat face having a pair of flat bottomed rectangular recesses out of vertical alignment with each other and vertically spaced, said last mentioned end wall having a flat face having portions vertically aligning with and endwise adjacent said recesses and out of vertical alignment with each other, said portions vertically overlapping and being transversely connected by a portion of said flat face lying between said recesses, said last mentioned end wall having a pair of oppositely directed transverse shoulders between said fiat faced portion and the flat bottoms of said recesses.

References Cited in the file of this patent Number UNITED STATES PATENTS Name Date Fuhrmann July 8, 1924 Lodwick Nov. 10, 1931 Fixman Mar. 18, 1941 Werner Mar. 10, 1942 Hosbein Apr. 14, 1942 Stone June 30, 1942 Antill Feb. 15, 1944 Weber Jan. 8, 1952 

